Filter stick forming machine with tow tension stabilizing function

The invention discloses a filter stick forming machine with a tow tension stabilizing function. The filter stick forming machine comprises a rack, a controller and a rear opening assembly, the controller and the rear opening assembly are arranged on the rack, and a front opening assembly is arranged in front of a tow opening opening of the rear opening assembly; and the front opening assembly is in sliding connection with the rack in the vertical direction. The front opening assembly comprises a mounting plate, and an opener, a first guide roller, a traction roller assembly, a second guide roller and a third guide roller which are sequentially arranged on the mounting plate in the tow conveying direction; and the opener is connected with an air source supply device through an air pipe. The tension of tows can be kept stable in the conveying process, and therefore the suction resistance stability of filter sticks is improved. 本申请公开了一种具有稳定丝束张力功能的滤棒成型机，包括：机架和设置在机架上的控制器和后置开松组件，后置开松组件的丝束开松口前设置有前置开松组件；前置开松组件沿竖直方向与机